Evolvable arithmetic uses fixed length chromosome code which can decide configuration in traditional evolvable hardware

its long code will led to low evolvable rate and high cost.An evolvable arithmetic which based on ternary code was advanced

these disadvantages can be solved by it.Using the matrix operation predominance of Matlab and the traditional GA

which can implement evolvable arithmetic

and find optimal circuit encode matrix

and get the optimal circuit function expression.The instance reflects many merits

which including the ternary code has small dimensions than fixed length chromosome code

fast constringent was led by multi-element directional variation

the validity of ternary code was proved.